801766463 has 4 divisors (see below), whose sum is σ = 802571640. Its totient is φ = 800961288.

The previous prime is 801766447. The next prime is 801766477. The reversal of 801766463 is 364667108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801766463 - 2⁴ = 801766447 is a prime.

It is a super-2 number, since 2×801766463² = 1285658922383060738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 801766463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801766363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401093 + ... + 403086.

It is an arithmetic number, because the mean of its divisors is an integer number (200642910).

Almost surely, 2^801766463 is an apocalyptic number.

801766463 is a deficient number, since it is larger than the sum of its proper divisors (805177).

801766463 is an equidigital number, since it uses as much as digits as its factorization.

801766463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805176.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 801766463 is about 28315.4809777267. The cubic root of 801766463 is about 929.0005306813. Note that the first 3 decimals are identical.

The spelling of 801766463 in words is "eight hundred one million, seven hundred sixty-six thousand, four hundred sixty-three".